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Review Roundup

This 4.1x zoom lens for APS-C format cameras sports a variable f/2.8-4 maximum aperture, silent focusing, optical stabilisation and a closest focusing distance of 22cm throughout the zoom range. The zoom range is roughly equivalent to that of a 25.5-105mm lens used on a 35mm camera. It is available to fit Canon, Nikon and Sigma cameras and costs around £350.Read the full review »

Sigma’s first entry into their contemporary series is their new 17-70mm f2.8-4 DC Macro OS HSM. The contemporary series is part of the company’s rebranding and a revamp in their quality control measures. Since it is a contemporary lens, it is also targeted at the APS-C sensor DSLR user. The focal length range also greatly appeals to the hobbyist along with the fast f2.8 aperture at the wider end. Add in Optical Stabilization and the brand new exterior and you’ve got yourself an aggressive repositioning in the market.Read the full review »

Sigma has a fondness for the 17-70mm range: the first version of this lens was released in 2006 in the advent of the digital era. It was updated in 2009 with optical stabilization, and then at the 2012 Photokina it was included in the new category of "Contemporary" lens as the 17-70mm ƒ/2.8-4 DC Macro OS HSM "C".Read the full review »